All Night Long (Sweet Valley High #5)

Welcome to Sweet Valley High--a world where good girls tell risky lies, bad girls make big mistakes, college boys are the biggest prize, and the party's still raging when the sun comes up. Jessica Wakefield has charmed many guys in her lifetime.

Long Synopsis:

Welcome to Sweet Valley High--a world where good girls tell risky lies, bad girls make big mistakes, college boys are the biggest prize, and the party's still raging when the sun comes up. Jessica Wakefield has charmed many guys in her lifetime. But she's never met a challenge like Scott Daniels. He's gorgeous. He's experienced. He's in college. And when he invites her to a party at a secluded cabin on the lake, Jessica is determined to prove that she may be a junior in high school, but not when it comes to love. When Elizabeth discovers that Jessica never came home from the party, she panics. She can't get Jessica on her cell, and if their parents find out, both girls will be grounded until the end of time. There's only one way out--for Liz to pretend to be her twin. But she has no idea what she is getting herself into.